Noisy lifter are they adjustable - 1995 Plymouth Neon

noisy lifters usually oil or adjustment problem revove and check rockers and valve lash

Lots of oil additives available, some claiming to quieten noise from hydraulic lifters - mostly with highly variable results...

its either worn lifters,rocker arms or camshaft lobes.Try to adjust the valves or add a bottle of STP oil treatment to your oil and that should help reduce the noise.

you could need valve clearance adjustment or need oil and filter change oil is dirty.causing dirt particles stop up hydralic lifter bleeder holes stopping lifters from pumping oil.or lifters worn out.and oil passages in engine block restricted with sludge.

Sorry but there is no valve adjustment with hydraulic lifters - can turn the lifter upside down fill with oil - let sit for a while and then tap on the lifters to see if they make noise - if noisy replace.  Camshaft may be worn on the lobes or may have jumped timing if belt.

The lifters on your vehicle would not be adjustable, so depending on mileage, a lifter could need replacing. Listen to this sound to determine if it is at engine speed, or at camshaft speed, which is half as fast. If at engine speed, it could be any number of things. If at camshaft speed, it couild be a broken vavle spring, a sticky valve or a noisy lifter.

Very common problem, some 2.9L were mechanical lifters that required adjustment, others have trouble with the hydraulic liters being noisy.

The valves never need adjusted, .Do to hydraulic lifters and zero clearance.The rocker arms are torqued to 35 ftlbs.So you never have to worry about it.If there is a noise have your lifters checked:)

if its an ohv type the most common fault is that the oil ways to the rocker shafts become blocked
so get some flushing oil drain the oil and replace with the flushing oil and run for the time stayed on the can then Change to good quality oil and new filter
then remove the rocker covers and check and adjust the valve clearances
if its an ohc type its all hydraulic adjustment
you could try flushing as above but apart from that the only other way is to change the lifters and followers
hope this helps

Unless you have adjustable rocker arms the only way to get rid of noisy lifters is to replace them.